'Upper' in the Bible

So the LORD told Isaiah, "Go out to meet Ahaz, you and your son Shear-jashub, at the end of the aqueduct of the Upper Pool that proceeds along the highway to Launderer's Field.

At that time, the LORD will reach out his hand yet a second time to recover the remnant that is left of his people, from Assyria, from Lower Egypt, from Upper Egypt, from Cush, from Elam, from Shinar, from Hamath, and from the islands of the sea.

Then the king of Assyria sent his field commander, along with a very large army, from Lachish to King Hezekiah at Jerusalem. When the field commander stopped at the aqueduct at the Upper Pool on the road to Laundryman's Field,

Watch! I will make the shadow on the steps of the upper dial of Ahaz that marks the sun go ten steps backwards."'" Then the sunlight turned back on the dial the ten steps by which it had gone down.